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making it suitable for replacement
Supervisory
Built-in USB interface for convenient and speedy programming
Vesda VSP-021 Metric to Imperial Pipe Adapter (Kit of Four)
Gentex GHLFW (904-0530-002) Low-Frequency Horn Silent Knight SK-RELAY making it suitable for replacementGentex GHLFW (904 0530 002) Low Frequency Horn, 24VDC 520Hz Square Wave Audible, White Low Frequency Audible Signal The GHLF Series low frequency audible signal is a high quality, low profile, audible appliance that offers a dependable 520 Hz square wave audible alarm with industry low current draw. The GHLF is ideal for any occupancy that requires low frequency notification appliances. The GHLF horn offers a temporal 3 tone with a jumper selection to
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